Answer:
The first digit of a two digit number can be any of digits 1 - 9. It cannot be 0 though. Therefore there are 9 possible digits for the first place.
There are 5 possible digits for the second position. The two digit number has to be odd and therefore the final digit must be 1,3,5,7 or 9
Therefore for each and every one of the nine first digits there are 5 digits that the second can be.
Therefore ANSWER = 9 * 5 = 45 possible permutations.
2. The largest two digit number = 99
Subtract 57 and you get 42
ANSWER = 42
The forty two numbers are 58 ,59, 60, 61......98, 99
Answer:
Graph C
Step-by-step explanation:
Just count out the number of lefts and rights, ups and downs.
Answer:
2.30 years
Step-by-step explanation:
The number of fish tripled in the first year, making a total of 240 * 3 = 720 fishes.
(a) The formula for logistic equation is as the following
where P0 = 240 is the number of fishes initially, we can plug in P = 720 and t = 1 to calculate the constant k
b) Using the following formula
with P = 3000, P0 = 240, k = 1.1, we can calculate the number of years it takes to get to 3000 fishes
